Watermelon rind is discussed in another thread.
Besides pickling, and used in salads, watermelon rind is so delicious baked or sautÃ¯Â¿Â½ed.
Sous vided pork chop on watermelon rind.
Then, you have watermelon radish, which is just radish that is watermelon red. Sous vided dry sea scallops on couscous and watermelon radish.